On Tue, 17 Jan 2012 16:55:22 -0500, Yifei Li <yifl...@gmail.com> wrote: > Hi all, > > I modified the example > http://documen.tician.de/pycuda/tutorial.html#advanced-topics by removing > the '__padding' from the structure definition and got incorrect result. > The kernel is launched with 2 blocks and one thread in each block. > > Each thread prints the 'len' field in structure, which should be 3 for > block 0 and 2 for block 1. However, the result I got is: > > block 1: 2097664 > block 0: 3 > > No such problem if I write the following program using C. Any help is > appreciated.
It seems CUDA doesn't automatically align the pointer, without being told to? https://en.wikipedia.org/wiki/Data_structure_alignment Andreas
pgpJVXJeDyvjc.pgp
Description: PGP signature
_______________________________________________ PyCUDA mailing list PyCUDA@tiker.net http://lists.tiker.net/listinfo/pycuda
